V4L/DVB (9797): Fix stv0299 support in dw2102 USB DVB-S/S2 driver

register 0x00 contains 0xa1 for STV0299 and STV0299B
register 0x00 might contain 0x80 when returning from standby

Signed-off-by: Igor M. Liplianin <liplianin@me.by>
Acked-by: Sergey Silkin <neovision@rambler.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>